From mboxrd@z Thu Jan 1 00:00:00 1970 From: Goswin von Brederlow Subject: Re: Fw: Why does one get mismatches? Date: Mon, 25 Jan 2010 11:37:04 +0100 Message-ID: <87y6jmxygf.fsf@frosties.localdomain> References: <644690.69223.qm@web51302.mail.re2.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: In-Reply-To: <644690.69223.qm@web51302.mail.re2.yahoo.com> (Jon Hardcastle's message of "Mon, 25 Jan 2010 02:07:11 -0800 (PST)") Sender: linux-raid-owner@vger.kernel.org To: Jon@eHardcastle.com Cc: Goswin von Brederlow , linux-raid@vger.kernel.org List-Id: linux-raid.ids Jon Hardcastle writes: > Now the array is completely dismantled and I am running bad blocks on the drives but I am on the last 2 of the 7 drives and I still have no leads. No bad blocks, no offline uncorrectable, no pending sectors no dmesg errors no nothing. I have absolutely no leads what so ever. > > The only thing i have left to try is a full Mem test and disconnect and reseat the additional sata controllers, oh and buy 7 new sata cables incase 1 is bad. The problem with badblocks is that it writes the same pattern everywhere. If the problem is that data gets read/written to the wrong block then that will not show up. Try formating each drive and run fstest [1] on it. Or some other test that verifies data integrity using different patterns per block. MfG Goswin [1] http://mrvn.homeip.net/fstest/